use Scalar::Util 'reftype', 'blessed';
use B 'svref_2object';
-our $VERSION = '0.02';
+our $VERSION = '0.04';
+our $AUTHORITY = 'cpan:STEVAN';
+
+use base 'Class::MOP::Object';
+
+# NOTE:
+# if poked in the right way,
+# they should act like CODE refs.
+use overload '&{}' => sub { $_[0]->{body} }, fallback => 1;
# introspection
# construction
-sub new {
+sub wrap {
my $class = shift;
my $code = shift;
('CODE' eq (reftype($code) || ''))
- || confess "You must supply a CODE reference to bless";
- bless $code => blessed($class) || $class;
+ || confess "You must supply a CODE reference to bless, not (" . ($code || 'undef') . ")";
+ bless {
+ body => $code
+ } => blessed($class) || $class;
}
-{
- my %MODIFIERS;
-
- sub wrap {
- my $code = shift;
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- my $modifier_table = {
- orig => $code,
- before => [],
- after => [],
- around => {
- cache => $code,
- methods => [],
- },
- };
- my $method = $code->new(sub {
- $_->(@_) for @{$modifier_table->{before}};
- my (@rlist, $rval);
- if (defined wantarray) {
- if (wantarray) {
- @rlist = $modifier_table->{around}->{cache}->(@_);
- }
- else {
- $rval = $modifier_table->{around}->{cache}->(@_);
- }
- }
- else {
- $modifier_table->{around}->{cache}->(@_);
- }
- $_->(@_) for @{$modifier_table->{after}};
- return unless defined wantarray;
- return wantarray ? @rlist : $rval;
- });
- $MODIFIERS{$method} = $modifier_table;
- $method;
- }
-
- sub add_before_modifier {
- my $code = shift;
- my $modifier = shift;
- (exists $MODIFIERS{$code})
- || confess "You must first wrap your method before adding a modifier";
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- ('CODE' eq (reftype($code) || ''))
- || confess "You must supply a CODE reference for a modifier";
- unshift @{$MODIFIERS{$code}->{before}} => $modifier;
- }
-
- sub add_after_modifier {
- my $code = shift;
- my $modifier = shift;
- (exists $MODIFIERS{$code})
- || confess "You must first wrap your method before adding a modifier";
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- ('CODE' eq (reftype($code) || ''))
- || confess "You must supply a CODE reference for a modifier";
- push @{$MODIFIERS{$code}->{after}} => $modifier;
- }
-
- {
- my $compile_around_method = sub {{
- my $f1 = pop;
- return $f1 unless @_;
- my $f2 = pop;
- push @_, sub { $f2->( $f1, @_ ) };
- redo;
- }};
-
- sub add_around_modifier {
- my $code = shift;
- my $modifier = shift;
- (exists $MODIFIERS{$code})
- || confess "You must first wrap your method before adding a modifier";
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
- ('CODE' eq (reftype($code) || ''))
- || confess "You must supply a CODE reference for a modifier";
- unshift @{$MODIFIERS{$code}->{around}->{methods}} => $modifier;
- $MODIFIERS{$code}->{around}->{cache} = $compile_around_method->(
- @{$MODIFIERS{$code}->{around}->{methods}},
- $MODIFIERS{$code}->{orig}
- );
- }
- }
-}
+## accessors
+
+sub body { (shift)->{body} }
+
+# TODO - add associated_class
# informational
+# NOTE:
+# this may not be the same name
+# as the class you got it from
+# This gets the package stash name
+# associated with the actual CODE-ref
sub package_name {
- my $code = shift;
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
+ my $code = (shift)->{body};
svref_2object($code)->GV->STASH->NAME;
}
+# NOTE:
+# this may not be the same name
+# as the method name it is stored
+# with. This gets the name associated
+# with the actual CODE-ref
sub name {
- my $code = shift;
- (blessed($code))
- || confess "Can only ask the package name of a blessed CODE";
+ my $code = (shift)->{body};
svref_2object($code)->GV->NAME;
}
+sub fully_qualified_name {
+ my $code = shift;
+ $code->package_name . '::' . $code->name;
+}
+
1;
__END__
=head1 DESCRIPTION
The Method Protocol is very small, since methods in Perl 5 are just
-subroutines within the particular package. Basically all we do is to
-bless the subroutine.
-
-Currently this package is largely unused. Future plans are to provide
-some very simple introspection methods for the methods themselves.
-Suggestions for this are welcome.
+subroutines within the particular package. We provide a very basic
+introspection interface.
=head1 METHODS
=over 4
-=item B<new (&code)>
-
-This simply blesses the C<&code> reference passed to it.
-
-=item B<wrap>
-
-This wraps an existing method so that it can handle method modifiers.
+=item B<wrap (&code)>
=back
=over 4
+=item B<body>
+
=item B<name>
=item B<package_name>
-=back
-
-=head2 Modifiers
-
-=over 4
-
-=item B<add_before_modifier ($code)>
-
-=item B<add_after_modifier ($code)>
-
-=item B<add_around_modifier ($code)>
+=item B<fully_qualified_name>
=back
-=head1 AUTHOR
+=head1 AUTHORS
Stevan Little E<lt>stevan@iinteractive.comE<gt>
+Yuval Kogman E<lt>nothingmuch@woobling.comE<gt>
+
=head1 COPYRIGHT AND LICENSE
Copyright 2006 by Infinity Interactive, Inc.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
-=cut
\ No newline at end of file
+=cut
+
projects / gitmo/Class-MOP.git / blobdiff